Locomotive-frame.



s. MFVAUCLAIN. LOGOMOTIVE FRAME.

APPLIGATION IILED MAR. 16, 1912.

Patented Oct. 21,1913.

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S. M. VAUOLAIN. LOGOMOTIVE FRAME. APPLIGATIQN FILED MAR. 16, 1912.

PatentedOct. 21," 1913;

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s. -M. VAUOLAIN. LOGOMOTIVB FRAME.

APPLICATION FILED MAR. 16, 1912.

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Patented 0ct.21 ,1913.

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' one-piece structure to which are attached the side frames, thecylinder castings and the UNITED sTA'rEs ratrnn orr on.

sAMuELM. VAUCLAIN. or PHILADELPHIA, PENNSYIL'VANIA, AssIGNon TO THEBALD- WIN LocoMorIvn woaxs, or PHILADELPHIA, PENNSYLVANIA, Aconrona'rron OF PENNSYLVANIA.

LOCOMOTIVE-FRAME Specificationof Letters Patent.

Application filed March 16, 1912. Serial No. 684,192,

To all whom it may concern: v, it known that I, SAMUEL M. VAUCLAIN, acitizen of the United States, residing in Philadelphia, Pennsylvania,,have invent- 5 ed certain Improvements in Locomotive- Frames, of whichthe following is a specification. 1

My invention-relates to certain improve ments in the forward frame of alocomotive. ...'The object of the invention is to. make a bumper, sothat the side frames of, the locomotive can bra-discontinued at the rearof the cylinder castings; the cylinder castings being firmly secured totheforward frame.

In the accompanying drawings: Figure 1,

is a side view of suflicient of the forward frameof a locomotive toillustratemy invention, the wheels being shown by dotted lines; theother-parts, which do not relate to the invention, are omitted to avoidconfusion. Fig. 2, is a plan view; and Fig. 3, is transverse section onthe line.33, Fig. 1.

Referring to the drawings, Ais the forward frame of the locomotive, madeas clearly shown in the drawings and having a rear extension A to whichtheside frames B, B of the locomotive are secured. In the i presentinstance, the extension A has a horizontal web a and depending flangesa.

. Each flange has a vertical rib a The side frames B are recessed at b,b to fit these ribs and bolts I) extend through the openings in the sideframes and the flanges, firmly securing the two parts together. In thepresent instance, vertical keys 0 are located in the recesses Z) to takeup any lost motion be- "h two parts. At the forward end ,ame A is thebumper extension A 1th an opening e directly above the forwardgjtruckand ribbed for strength, as shown. The bumper is secured to the face e,forming the end of the forward frame.

7 As shown in Fig; 3, the body of the frame A has depending flanges fand is reinforced by ribs f. The top plate f 0f the body portion issolid and raised shghtly -at the edges, as shown, so that the cylindercastings 0 will accurately fit onthe frame. D, D are the cylindercastings, each, in-the present instance, having a cylinder opening D anda vertical flange d. The flange of one cylinder casting abuts that ofthe other cylinder casting; the two flanges being firmly securedtogether by a series of bolts 9. The flanges of the cylinder castingsare continued to form a horizontal flange cl on each casting and avertical flange d at the lower portion of each casting. Each horirontalflange cl rests directly upon the upper surface of the forward frame A,while the flange 03 of each casting rests against the depending flange fof said frame .A. Bolts it pass through-openings in the flanges d and inthe top plate f of the. frame A, and bolts 71 pass through openings inthe flanges d and in the flanges f of the said frame. Thus each cylindercasting is firmly secured to the body portionnby a se-' ries of verticalbolts and by a series of horizontal bolts. This construction isespecially adapted for large locomotives in which the cylinder castingscan be rigidly held and which obviate the necessity for extremely longside frames, as the side frames are rigidly secured tothe rear end ofthe forward frame and the cylinder castings have a greater bearing onthe forward frame than they would have on the side frames, if they wereextended past the said cylinder castings. Furthermore, this constructionmakes a very rigid support for the bumper and the parts mounted on theforward end of the locomotive.

.1. The combination in a locomotive, of a forward frame having a topplate and depending flanges; rearward extensions to which the sideframes of the; locomotive are secured; and a forward extei'isiogiformlanar Oct. 21,1913.

ing a bumper frame; with two cfirlinder castings mounted one on eachside of the main frame, and secured to the top plate and to the sideflanges of the said main portion of the forward frame.

2. The combination in the forward frame of a locomotive having a mainbody portion ing a forwardextension, also ribbed and I forming abumpersupport; a rearward extension-having a top plate and dependingflanges shaped to receive the forward end ortions of the side frames ofthe. oco'motive; means for securing sa d side frames to. the rearextensions of l-Q the forward frame; cylinder castings mounted on eachside of the body portion of the forward frame and each having a'horizontal anti a vertical flange; bolts passing through openings insaid horizontal and vertical flanges and through openings in the topplate-and flanges of the forward frame,- and abutting flanges on eachcylinder casting; with means for securing the two cylinder castingflanges together and to the forward frame. a

3. The combination in a. locomotive, of a forward frame having a topplate and depending flanges; with two cylinder castings mounted one oneach side of the frame and secured to the top plate and tothe sideflanges of the frame.

' 4. The combination in .a locomotive, of a forward framehaving'a bodyportion; cyl inder castings secured to said portion; a rear-extension ofthe frame having a horizontal web and 21 depending flange at each side;and side frame terminating at thev rear of the cylinder castings andsecured to the flanges of the rear extension.

5. The combination in a locomotive, of a a body portion; cylforwardframe having to the body portion,

inder castings secure said frame having a rear extension consistmg of ahorizontal Web and slde flanges; a"

vertical rib on each sideflange; side frames terminating at the rear ofthe cyllnder cast-- ings and recessed toreceive the ribs; verti-' calkeysin the recesses; and transverse bolts securing the side frames tothe flanges of the frame.

- In testimony whereof, I have signed m name to this specification, inthe presence

